Congenital heart disease is the most common congenital anomaly, occurring in almost 1% of live births ( 1 ). Among birth defects, congenital heart disease is the leading cause of infant mortality. The most common congenital heart defects diagnosed in infancy are muscular and perimembranous ventricular septal defects, followed by secundum atrial septal defects, with an overall prevalence of 48.4 per 10,000 live births ( 2, 3, 4 ). The most common “blue” congenital heart defect is tetralogy of Fallot, which is twice as common as transposition of the great arteries (4.7 versus 2.3 per 10,000 births). Overall, bicuspid aortic valve is the most common congenital heart defect, with a prevalence of 0.5–2.0%.

Ushbu maqolada binolarning energiya samaradorligini ta’minlashning zamonaviy muhandislik uslublari to‘g‘risida ma’lumotlar keltirilgan. Bundan tashqari, maqolada binolarning energiya samaradorligini oshirishning muhandislik usuli sifatida issiqlik nasoslaridan foydalanish bo‘yicha xorijiy mamlakatlar tajribalari, hamda energiya tejaydigan binolar xavfsizlik va ishonchlilik uchun me’yoriy talablarga javob berishi bo‘yicha ma’lumotlar keltirilgan.

Mazkur ilmiy maqolada sharq allomalarining buyuk meroslarini o‘rganishda nafaqat ilmiy, balki madaniy, axloqiy va diniy qadriyatlari, shuningdek ularning asarlari tarixiy tafakkurni oshirish va hozirgi davrda ilmiy yondashuvlarni rivojlantirishga xizmat qilish haqida so‘z boradi.

Bul maqalada muzıka sabaǵı mazmunınıń oqıwshı jaslardıń jasına hám bilimine say bolıwı, muzıka sabaqlarında oqıtıwdıń zamanagóy tiykarlari haqqında sóz etilgen.

в данной статье посвящена основным вопросам проведения статистического анализа в медико-биологические исследований. Статистическая обработка представляет собой сложный многоступенчатый процесс, от уровня научной организации которого решающим образом зависит качество накапливаемых статистических данных, результаты их обработки и осмысления.